TE Connectivity ALCOSWITCH 1571989-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity ALCOSWITCH 1571989-3 is a rocker switch with DPDT (Double Pole Double Throw) circuit configuration, rated for 0.4VA at 20V AC/DC operation. This through-hole mounted switch features a concave black actuator with epoxy sealed terminals and IP67 ingress protection. The part is classified as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement continuity.

Substiute Parts

1571989-3

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10721571989-3 Datasheet

Current PartRFQ

1571988-2

TE Connectivity ALCOSWITCH SwitchesIn Stock: 10051571988-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 1571989-3 is based on compatibility within the TE Connectivity ALCOSWITCH AE series. The substitute part 1571988-2 shares the following critical parameters that establish functional equivalence:

Common Parameters:

• Manufacturer: TE Connectivity ALCOSWITCH Switches
• Series: AE
• Mounting Type: Through Hole
• Switch Function: On-On
• Actuator Type: Concave (Standard V)
• Actuator Color: Black
• Termination Style: PC Pin
• Ingress Protection: IP67 - Dust Tight, Waterproof
• Operating Temperature Range: -30°C to 85°C
• Electrical Life: 6,000 Cycles
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Differing Parameters: The substitute part 1571988-2 operates at higher electrical ratings (5A at 120V AC / 28V DC) compared to the original part (0.4VA at 20V). This difference permits the substitute to function in applications requiring the original part's specifications while supporting higher-capacity applications. The substitute features right-angle mounting orientation and active product status with ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The substitute part 1571988-2 is suitable for applications currently using the obsolete 1571989-3 where circuit configuration and electrical rating requirements permit. The substitute maintains identical environmental protection (IP67), operating temperature range (-30°C to 85°C), and mechanical durability (6,000 electrical cycles) as the original part.

The 1571988-2 offers the advantage of active product status, ensuring continued availability and supply chain support. The part carries ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic components in restricted substance directives.

The right-angle mounting orientation of the substitute differs from the original through-hole configuration. Panel cutout dimensions and mechanical integration must be evaluated for specific applications. The higher electrical ratings (5A at 120V AC / 28V DC) of the substitute accommodate applications with greater power requirements while remaining backward compatible with lower-power applications within the original 0.4VA at 20V specification.

Frequently Asked Questions (FAQ)

Q: Can the 1571988-2 directly replace the 1571989-3 in all applications?

A: The 1571988-2 is electrically compatible with applications operating at or below the original part's 0.4VA at 20V specification. The substitute's higher ratings (5A at 120V AC / 28V DC) provide additional capacity. However, the right-angle mounting orientation differs from the original through-hole configuration, requiring mechanical integration verification for specific panel layouts.

Q: What is the primary difference between these two parts?

A: The original 1571989-3 is a DPDT switch rated for 0.4VA at 20V with standard through-hole mounting. The substitute 1571988-2 is an SPDT switch rated for 5A at 120V AC with right-angle through-hole mounting. Both parts share identical environmental protection, temperature range, and mechanical life specifications within the AE series.

Q: Does the circuit configuration difference (DPDT vs. SPDT) affect substitution?

A: Circuit configuration is a functional parameter that must align with application requirements. DPDT (Double Pole Double Throw) provides two independent switching circuits, while SPDT (Single Pole Double Throw) provides one. Substitution is valid only when the application circuit design accommodates the SPDT configuration of the replacement part.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active product status indicates the 1571988-2 is in current production with established supply chain availability. This status provides long-term procurement reliability and support compared to the obsolete 1571989-3, which is no longer manufactured.

Q: Are there compliance differences between the original and substitute parts?

A: The original 1571989-3 carries "Not Applicable" RoHS status and "Vendor Undefined" REACH status. The substitute 1571988-2 is ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components in restricted substance directives.

Q: How do the packaging specifications differ?

A: The original part is specified with "-" packaging notation. The substitute 1571988-2 is supplied in Bulk packaging. Packaging configuration should be verified against procurement and assembly requirements for specific applications.

Q: What environmental protection level do both parts provide?

A: Both the original 1571989-3 and substitute 1571988-2 provide IP67 ingress protection (dust tight and waterproof) with epoxy sealed terminals, ensuring equivalent environmental durability across applications requiring moisture and dust resistance.